线在哪里？AR和GNSS对公用事业的增强感知

作者：Renata BarradasGutiérrez

通过10,794.6公里的高架线和地下电缆以及超过2,000公里的天然气管道系统的网络有效地分发电力和天然气是一项巨大的努力。Vorarlberger Energienetze GmbH（Vorarlberg Netz）是电力和天然气网格电网操作员，该网络在奥地利最西端的州Vorarlberg维持该网络的供应可靠性高和优异的服务质量。

Beyond the extension of the network, some of the challenges the company faces are the terrain, with two thirds of the land area in mountainous regions, and not being able to visualise the lines, as 94% of the electricity cables are underground.

“知道这些线路的位置在确保不间断的供应方面起着重要作用。理论上听起来很简单的内容通常会导致实践中的挑战。完成施工后，表面上不可见电源电缆和管道。一段时间后，即使是经验丰富的员工也无法再回答“线路在哪里？”的问题。Vorarlberg Netz的GIS管理员兼开发人员Sebastian Drexel解释说。“This is one of the main reasons why each line is surveyed and centrally saved within the company’s GI-system. So far, restoring lines in nature has been a time-consuming task performed by specially-trained staff.”

在3D中以调查级准确性可视化实用程序

To make the task of restoring lines easier, vorarlberg netz is using state-of-the-art Augmented Reality (AR) and GNSS. AR technology superimposes digital information on an environment providing actionable information to solve problems or a specific task. Combined with GNSS, users can visualise and position utilities with survey-grade accuracy.

Digitally visualising georeferenced utilities in 3D allows vorarlberg netz field staff to intuitively experience in real-time the underground supply infrastructure and enhance natural environments via smart devices. “Our service technicians are enthusiastic about the simple and intuitive visualisation that is possible through Augmented Reality,Drexel说。

Vorarlberg Netz使用了Leica GG04加上智能天线in combination withvGISUtilities, a utility-grade AR system for ESRI ArcGIS designed for municipalities and public utility companies. The GG04 plus smart antenna collects high-accuracy geospatial data in real time, even in the most demanding locations without the need for a mobile data connection. The antenna also pairs with all existingLeica Zenohandhelds and a wide range of Android, iOS or Windows® smart devices.

To precisely position utilities, the team uses the GG04 plus withHXGN SmartNet, the world’s largest reference network, for open-standard correction service. The integration between vGIS and GG04 plus smart antenna enables access to NMEA metadata and survey-grade, few centimetre positioning. The vorarlberg netz team quickly and easily configured the GG04 plus GNSS smart antenna to be used with vGIS on a smartphone, tablet or Microsoft HoloLens.

“We opted for the Leica GG04 plus antenna, as it is relatively low-priced, small, handy and can be coupled with mobile devices. The last of these points is crucial since the AR software runs on an Android or iOS tablet or smartphone,”explains Drexel. “由于简单的设置，与移动设备的连接，可靠性和产品的高精度相比，建议使用VGIS和GG04 Plus的组合。”bob综合app下载

Applications and benefits of AR and georeferenced utilities

VGI与GNSS配对，允许用户通过地面实时“查看” GIS实用程序。这可以提高情境意识，帮助您更快地以更少的错误和安全的方式定位公用事业。Vorarlberg Netz目前正在试点阶段使用AR来开发专有技术，搜索，验证和介绍实际应用。目前，该公司从四个不同的应用程序中受益最多：

1. 检查建筑物或工厂覆盖物的供应路线以及沿线断层的位置。
2. Restoration of lines in nature before construction activities.
3. Location of resources that are not easily visible, e.g. shut-off devices covered by gravel or snow.
4. Coordination and clarification of construction activities to external companies.

vorarlberg netz is also looking to integrate the visualisation of georeferenced utilities in combination with 3D models. The electricity and natural gas network grid operator uses a terrestrial laser scanning unit from Leica Geosystems to capture point cloud data of existing infrastructure which can further be converted to BIM models. This information is going to be the basis for the facility management, responsible for the maintenance of e.g. buildings or transformer stations.

“除了计划新对象外，还需要使用激光扫描仪收集库存数据，在我们公司中使用现代BIM技术。结合3D GIS数据，这为设施管理领域开辟了新的可能性，并以增强现实的可视化数字双胞胎的可视化。”says Andreas Mätzler, head of geoinformatics at vorarlberg netz.

使用GNSS对公用事业的AR的好处包括：

• 可视化3D中的GIS数据，以定位并找到地下公用事业。
• Spot faster and fix on the ground GIS data location issues, reducing collection costs.
• Improve route control for overcrowding, fouling and location of faults along cable routes.
• 简化测量师对电缆的利益。
• Search and locate resources and subterranean infrastructure that are not readily visible, such as shut-off devices covered by gravel or snow.
• 改善现场协调和澄清严重工作。

Providing multiple services to transport energy and natural gas

Despite the transport of electrical energy and natural gas from the feed-in points of the transmission network by vorarlberg netz, the parent companyIllwerke VKW AGalso performs general technical surveys, seabed surveys and engineering geodesy for tunnel advancing. For these endeavours, the company also uses Leica Geosystems solutions, including:

• 速符
• GNSS receivers
• Levelling instruments
• Laser scanners

“我们使用Leica Geosystems产品来测bob综合app下载量电气和气体线以及为外部客户提供GIS服务的一部分，”Vorarlberg Netz的网格和地理信息负责人Marco Ess解释说。